package com.kfm.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

@WebFilter("/*")
public class CharsetEncodingFilter implements Filter {


    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        if (servletRequest instanceof HttpServletRequest request) {
            String method = request.getMethod();
            if ("post".equalsIgnoreCase(method)) {
                request.setCharacterEncoding("UTF-8");
            }
        }

        filterChain.doFilter(servletRequest, servletResponse);
    }
}
